I have searched the forums but have not mangaed to quite find what im looking for. I have used to /etc/passwd command to present me a list of all users the who command to present all users currently logged on, but what i want to know is what command can i use to display users that are registered... (12 Replies)
My admin needs a shell script in Korn that will show conditions based on users logged in. I have never used the Korn shell and have no clue what I am doing, can anyone help.
here are the conditions that need to be returned.
if users are below 5
displays should be: performance is high
if... (1 Reply)
Is it possible to get a list of users sorted by the number of processes executed by each.
I have a HP - UX server with 2800 processes running currently.
And I want to know the number of processes owned by each person logged in to that server.something like below:
user1 : 150 Processes
user2 :... (2 Replies)
For the first 4 users only that are currently logged in output their effective user id.
It's not important the order in which each logged in i just want to have the top 4.
Same question as here...... (0 Replies)
how to find out total number of users logged in a server from uptime . i mean to say i need the total output of unix command . who gives the out put at a particular time . I need at all time from which machine who has connected , (3 Replies)
Dear All,
I need your help in finding out users not logged in to linux system for more than 90 days. I found a script from our forum i am getting error while using that.
from the code i have debugged line by line to see where i am getting the problem. i found out the below line i am getting... (5 Replies)
In a professional environment with traditional application you often want (or are asked) to report the users.
Traditionally there is the who command
who | awk '{print $1}'telnetd or sshd register the users in the utmp file, to be shown with who, w, users, finger, pinky, ...
In addition they... (1 Reply)
Discussion started by: MadeInGermany
1 Replies
LEARN ABOUT DEBIAN
plan9-join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [ options ] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If one of the file names is the
standard input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading
separators are discarded.
The following options are recognized, with POSIX syntax.
-a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-v n Like -a, omitting output for paired lines.
-e s Replace empty output fields by string s.
-1 m
-2 m Join on the mth field of file1 or file2.
-jn m Archaic equivalent for -n m.
-ofields
Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or
have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators.
-tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant.
EXAMPLES
sort /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays
Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con-
tains sorted lines like
tr : ' ' </etc/passwd | sort -k 3 3 >temp
join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
Print all pairs of users with identical userids.
SOURCE
/src/cmd/join.c
SEE ALSO sort(1), comm(1), awk(1)BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
One of the files must be randomly accessible.
JOIN(1)